<div class="div_body">
    <div class="div_login_after">
        <?php echo form_open('con_users/logout') ?>
        <div style="text-align: center;">
            <label style="color: red;">ออกจากระบบ : </label><input type="submit" name="submit" value="Log out" />
        </div>
        <?php echo form_close(); ?>
    </div>
</div>
<style type="text/css">
    .div_login {
        display: none;
    }
    .div_login_after {
        margin-top: 1px;
        border: #373737 solid 1px;
        padding: 3px 3px;
        height: 25px;
    }
</style>